The Lost Episodes of Doom is a book/disk package.
It takes place on the Jovian moons Callisto and Io and Jupiter itself. The
246-page book provides a detailed guide of the 24 new levels with stories that
are a crucial element to this game. It was written by Jonathan Mendoza with some
notes by both map designers. It seems the United Aerospace Corporation's experiments
with inter-dimensional space travel have gone awry. Anomalies, apparent ruptures in
the fabric of time/space, were discovered on Jupiter's moons and opened the possibility
of instant space travel. The human subjects who dared to jump through are emerging as
blood-thirsty killers. But even more disturbing, a host of interdimensional creatures
are also materializing in our universe. You are a scientist who tried to warn them but
was ignored and now must rely on your former Marine training to battle these enemies
and to close the portals. Jupiter's Red Spot also turns out to be the largest gateway
to Hell in the entire Solar system.